(Topic ID: 247350)

Jurassic Park Ball Trough Issue

By jugood20

4 years ago



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#1 4 years ago

I am experiencing a ball trough issue and was hoping someone could give me some advice.
The issue only seems to happen during 6 ball multi ball when in chaos mode or system failure. At the start of chaos or system failure, the game will begin to plunge and clear all the balls from the trough without any problems. The problem occurs when a few of the balls begin to drain. The balls will stay in the trough (usually position 1 , 2 and 3) but the coil is still firing like it is trying to plunge the balls back onto the playfield.
After all balls drain, the game starts up the next ball with no issue so . Has anyone experienced this or have any thoughts?

Thanks!

#2 4 years ago

Did the balls get magnetized and are sticking together in the trough?

#3 4 years ago

Good question. I am not sure, I’ll need to test again and check. And what would cause that to happen?

Thanks.

#4 4 years ago

Put the balls on a flat surface and see if they tend to stick together.

It sounds like the balls aren't sliding down the trough easily enough but then do once the weight of a few balls is behind them. Magnetized balls is a common reason for this. Others are divots in the trough or a switch or something sticking up to block them.

#5 4 years ago

Great advice. I’ll check into this tomorrow and see what I can find. Thank you.

#6 4 years ago
Quoted from twenty84:

Put the balls on a flat surface and see if they tend to stick together.
It sounds like the balls aren't sliding down the trough easily enough but then do once the weight of a few balls is behind them. Magnetized balls is a common reason for this. Others are divots in the trough or a switch or something sticking up to block them.

So I did what you suggested and placed the balls on a flat surface to see if they were magnetized, and they didn’t appear to be. Even if they were, what is the fix for that issue? Replace the balls with new ones?

Is there anything else I should be looking for? What do you mean by divots in the trough? Could you please provide more info on that ? Thanks

#7 4 years ago

Had a similar problem with Tommy and it is a more common problem on D.E. pins. Check the switch on the end of the trough (the one detecting there is a ball ready to launch) It's quit sensitive to adjust correctly. While you are checking, test the switches on the trough also (they need to switch with very low pressure. Having to much pressure and no other balls pushing, the balls won't progress correct in the trough)

#8 4 years ago

Might help you

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